Convert MKV to MP3 in bulk.
Large MKV files are supported.

Convert MKV Learn more about MKV files to

Video
MKV to 3G2 Select 3G2 as the output format MKV to 3GP Select 3GP as the output format MKV to AMV Select AMV as the output format MKV to AVI Select AVI as the output format MKV to FLV Select FLV as the output format MKV to MOV Select MOV as the output format MKV to MP4 Select MP4 as the output format MKV to MPG Select MPG as the output format MKV to MXF Select MXF as the output format MKV to OGG Select OGG as the output format MKV to VOB Select VOB as the output format MKV to WebM Select WebM as the output format MKV to WMV Select WMV as the output format
Audio
MKV to AAC Select AAC as the output format MKV to AC3 Select AC3 as the output format MKV to AIFF Select AIFF as the output format MKV to FLAC Select FLAC as the output format MKV to M4A Select M4A as the output format MKV to MP3 Select MP3 as the output format MKV to OPUS Select OPUS as the output format MKV to WAV Select WAV as the output format MKV to WMA Select WMA as the output format
Image
MKV to AVIF Select AVIF as the output format MKV to BMP Select BMP as the output format MKV to GIF Select GIF as the output format MKV to ICO Select ICO as the output format MKV to JPG Select JPG as the output format MKV to PNG Select PNG as the output format MKV to TIFF Select TIFF as the output format MKV to WebP Select WebP as the output format


How to convert MKV to MP3?

You can convert MKV to MP3 with MConverter in three easy steps:
  1. Choose MKV files from your device or cloud storage
    At the top of this page, drag and drop your MKVs.

    Alternatively, click on the Browse box to select files with your device's file picker, or copy and paste an MKV file by pressing Ctrl+V (or ⌘+V on Mac).

    MConverter can easily import MKVs from Google Drive, OneDrive, and Dropbox.

    Converting a folder with MKV files to MP3 is also supported: simply paste, drag and drop it, or use the ADD FOLDER button.
  2. Click or tap on MP3 from the list of target formats
    You could also use the search box at the top right to quickly find the format you need, whether it's MP3 or something else.
  3. Get your MP3 files after MConverter has finished processing them
    Click on DOWNLOAD ALL to save your MP3s to your default downloads folder, or select SAVE TO to choose another location.

    You can also configure automatic file downloads during the conversion process or in the settings menu. When enabled, each MP3 file is downloaded as soon as its conversion is complete, without waiting for the others to finish.

    If supported by your device, you'll see a Share icon, allowing you to directly send converted files to other apps.

About the formats

File extension .mkv
Category Video file formats
Developed by Matroska
Mime type video/x-matroska

Format description

MKV files are MatrosKa Video files. Like the Russian Matryoshka doll, which contains multiple smaller dolls nested inside each other, the MKV format can contain multiple video, audio, and subtitle tracks inside a single file. This makes it convenient to have one video with a number of audio and subtitle tracks in different languages, all inside a single playable file.
File extension .mp3
Category Audio file formats
Developed by MPEG (Moving Picture Experts Group)
Mime type audio/mpeg

Format description

MP3 is a commonly used audio format. The audio data is compressed inside the file, which is why MP3 files take up less space than WAV, for example. Even though the audio is compressed, the quality is still good enough for most personal use cases.

MKV to MP3 Converter Rating

4.7
49 votes

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Rated Excellent (4.8) on Trustpilot
I love MConverter. It's fast, efficient and accurate. Suzan Vaughn
Awesome --- quick and error free. Exactly what I needed. Mark Evans
Using MConverter is like having a magic wand for file conversions. Marcin Otta
High quality. Did the job. And did it well. Highly recommend. Cody H
Totally awesome: I converted a short MP4 to png image sequence Xander Treffers
The only converter that gave awesome quality! Ksenia Novakova
Click. Upload. Choose format. Download. Done. Thunderxbolt

Real stories from people who rely on MConverter

Arturo
Sep 25, 2025
I love that I can just convert my files from File Explorer, no need opening the app first, just right click and "open with" or the "Share" button and choose "MConverter" immediately or drag the file to MConverter home screen if I'm in a rush. Even though it's a web wrapper, it still serves a distinct purpose, compared to other website converters.
Fred Janning
May 5, 2025
What I appreciate most is how user-friendly it is. It handles just about any file conversion I throw at it, quickly and efficiently. It's become an indispensable tool in my daily workflow. The fact that it supports so many formats is a huge plus, and it's saved me a lot of time and hassle. It's a solid, reliable tool, and I'd definitely recommend it to anyone who needs to convert files regularly.
TorQue MoD
Mar 31, 2025
I love this converter! It's free and easy to use, and it successfully converted .mov with transparent background to .png with transparent background in only a few seconds. It will now live permanently in my Tools bookmark folder :)
Roger StH
Nov 28, 2024
Excellent tool, it does exactly what it says it will do. It does it really quick. No fuss, just upload your file in the web interface, select the output and the download of your formatted file begins almost immediately. Super fast !
Ashley
Oct 16, 2024
AMAZING APP! I am so glad I found it!! It actually converts WEBM files without the weird bleeds! It's the only app I use to convert cute emotes from any site! I have been looking for years to find an image/gif converter but all the ones I found didn't convert emotes correctly. MCONVERTER DOES!! Hands down, best app!
Nadeem Khan
Sep 30, 2024
Had a problem in opening rtf files on my cell while in a meeting, then searching Google and fortunately found mconverter and that solved my problem within seconds for free. Indeed the entire teams deserve to be highly appreciated for this incredible software. Hats off to all of them. wishing you more successful developments in future. Stay blessed ❤️
George Moore
Sep 12, 2024
BRO I HAVE BEEN TRYING FOR LIKE 5 YEARS TO GET A VIDEO FILE TO WORK ON MY CHEAP RUIZU MP3 PLAYER TO WORK, AND THIS THING DID IT PERFECT!!!!! 10/10
Jelena Arbutina
Sep 3, 2024
I tried several programs to convert AI files to PNG, but only this program managed to convert both the text and the image exactly as in the original. The other programs transformed the text using their own fonts, which were not the ones originally used.
Lorenzo B.
Apr 18, 2025
(translated)
An exceptional product, with a fantastic, simple, immediate effective UX. A spatial combination of which format can be converted to which other format. A fast and flawless execution, with a very high quality of the output that maintains practically all the characteristics of the original document.
David I.
Dec 20, 2023
What truly sets MConverter apart is its Swiss Army knife-type functionality. This tool can convert anything to anything with just a click of a button. It doesn't matter whether you're working with audio, video, documents, images, or any other file type - MConverter has got you covered.
Whitney
Aug 28, 2024
(updated)
This app is exactly what I asked for and is super easy to use. I am not a big time computer wizard so I need apps that do what they say do in a straightforward process. This app does just that! I love it and will continue to use it and will advise others of it as well. Good job to the owners/developers! And, sincere THANK YOU!
Daniel Awesome
Aug 20, 2024
Finally found a converter that did webp to gif without killing the animation. I tried around 12ish different converters and this is the only one that works so far. Hats off to you dev, thank you.
Antonio Hurtado
Mar 16, 2022
The most fantastic, fastest, best and easiest file converter I have ever had installed on my mobile. You deserve all the praise possible, more than happy, I am super grateful, I will always be grateful to you for this super fantastic application. This super fantastic app has literally saved my life, now I can read novels and books in any format, including pdf, which has very small print, in epub format👏
matt32
Apr 6, 2023
AMAZING! This is the perfect file converter! The first thing I used it for was to convert WMV files to MP4 and it worked flawlessly. I then realized it supports all kinds of formats and is basically unlimited. The UI is very user-friendly and super easy to navigate. Incredible app, MConverter!
지나가던인간
Sep 22, 2021
(translated)
Although there are occasional errors, I was very impressed with the efforts of the developers to receive feedback from users and to improve the inconveniences quickly. I will be using it more often in the future.
Scott
Apr 28, 2022
I grab the webm I want to move to my phone and drag it over to the app, I click the type of file I want the webm converted to (mp4), it does it in 10 seconds. easiest 5/5 of my life.

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Absolutely! We offer discounts on our annual plans for corporate organizations and academic institutions when setting up multiple accounts.

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